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/*-
* Copyright (c) 2009 Yahoo! Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/mps/mps_pci.c 232988 2012-03-14 22:27:28Z ken $");
/* PCI/PCI-X/PCIe bus interface for the LSI MPT2 controllers */
/* TODO Move headers to mpsvar */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <sys/sysctl.h>
#include <sys/uio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pci_private.h>
#include <dev/mps/mpi/mpi2_type.h>
#include <dev/mps/mpi/mpi2.h>
#include <dev/mps/mpi/mpi2_ioc.h>
#include <dev/mps/mpi/mpi2_cnfg.h>
#include <dev/mps/mpi/mpi2_tool.h>
#include <sys/queue.h>
#include <sys/kthread.h>
#include <dev/mps/mps_ioctl.h>
#include <dev/mps/mpsvar.h>
static int mps_pci_probe(device_t);
static int mps_pci_attach(device_t);
static int mps_pci_detach(device_t);
static int mps_pci_suspend(device_t);
static int mps_pci_resume(device_t);
static void mps_pci_free(struct mps_softc *);
static int mps_alloc_msix(struct mps_softc *sc, int msgs);
static int mps_alloc_msi(struct mps_softc *sc, int msgs);
static device_method_t mps_methods[] = {
DEVMETHOD(device_probe, mps_pci_probe),
DEVMETHOD(device_attach, mps_pci_attach),
DEVMETHOD(device_detach, mps_pci_detach),
DEVMETHOD(device_suspend, mps_pci_suspend),
DEVMETHOD(device_resume, mps_pci_resume),
DEVMETHOD_END
};
static driver_t mps_pci_driver = {
"mps",
mps_methods,
sizeof(struct mps_softc)
};
static devclass_t mps_devclass;
DRIVER_MODULE(mps, pci, mps_pci_driver, mps_devclass, 0, 0);
MODULE_DEPEND(mps, cam, 1, 1, 1);
struct mps_ident {
uint16_t vendor;
uint16_t device;
uint16_t subvendor;
uint16_t subdevice;
u_int flags;
const char *desc;
} mps_identifiers[] = {
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
0xffff, 0xffff, 0, "LSI SAS2004" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008,
0xffff, 0xffff, 0, "LSI SAS2008" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1,
0xffff, 0xffff, 0, "LSI SAS2108" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2,
0xffff, 0xffff, 0, "LSI SAS2108" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3,
0xffff, 0xffff, 0, "LSI SAS2108" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1,
0xffff, 0xffff, 0, "LSI SAS2116" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
0xffff, 0xffff, 0, "LSI SAS2116" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
0xffff, 0xffff, 0, "LSI SAS2208" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2,
0xffff, 0xffff, 0, "LSI SAS2208" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3,
0xffff, 0xffff, 0, "LSI SAS2208" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4,
0xffff, 0xffff, 0, "LSI SAS2208" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5,
0xffff, 0xffff, 0, "LSI SAS2208" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6,
0xffff, 0xffff, 0, "LSI SAS2208" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1,
0xffff, 0xffff, 0, "LSI SAS2308" },
// Add Customer specific vender/subdevice id before generic
// (0xffff) vender/subdevice id.
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
0x8086, 0x3516, 0, "Intel(R) Integrated RAID Module RMS25JB080" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
0x8086, 0x3517, 0, "Intel(R) Integrated RAID Module RMS25JB040" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
0x8086, 0x3518, 0, "Intel(R) Integrated RAID Module RMS25KB080" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
0x8086, 0x3519, 0, "Intel(R) Integrated RAID Module RMS25KB040" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2,
0xffff, 0xffff, 0, "LSI SAS2308" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3,
0xffff, 0xffff, 0, "LSI SAS2308" },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
0xffff, 0xffff, MPS_FLAGS_WD_AVAILABLE, "LSI SSS6200" },
{ 0, 0, 0, 0, 0, NULL }
};
static struct mps_ident *
mps_find_ident(device_t dev)
{
struct mps_ident *m;
for (m = mps_identifiers; m->vendor != 0; m++) {
if (m->vendor != pci_get_vendor(dev))
continue;
if (m->device != pci_get_device(dev))
continue;
if ((m->subvendor != 0xffff) &&
(m->subvendor != pci_get_subvendor(dev)))
continue;
if ((m->subdevice != 0xffff) &&
(m->subdevice != pci_get_subdevice(dev)))
continue;
return (m);
}
return (NULL);
}
static int
mps_pci_probe(device_t dev)
{
struct mps_ident *id;
if ((id = mps_find_ident(dev)) != NULL) {
device_set_desc(dev, id->desc);
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
static int
mps_pci_attach(device_t dev)
{
struct mps_softc *sc;
struct mps_ident *m;
uint16_t command;
int error;
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
sc->mps_dev = dev;
m = mps_find_ident(dev);
sc->mps_flags = m->flags;
/* Twiddle basic PCI config bits for a sanity check */
command = pci_read_config(dev, PCIR_COMMAND, 2);
command |= PCIM_CMD_BUSMASTEREN;
pci_write_config(dev, PCIR_COMMAND, command, 2);
command = pci_read_config(dev, PCIR_COMMAND, 2);
if ((command & PCIM_CMD_BUSMASTEREN) == 0) {
device_printf(dev, "Cannot enable PCI busmaster\n");
return (ENXIO);
}
if ((command & PCIM_CMD_MEMEN) == 0) {
device_printf(dev, "PCI memory window not available\n");
return (ENXIO);
}
/* Allocate the System Interface Register Set */
sc->mps_regs_rid = PCIR_BAR(1);
if ((sc->mps_regs_resource = bus_alloc_resource_any(dev,
SYS_RES_MEMORY, &sc->mps_regs_rid, RF_ACTIVE)) == NULL) {
device_printf(dev, "Cannot allocate PCI registers\n");
return (ENXIO);
}
sc->mps_btag = rman_get_bustag(sc->mps_regs_resource);
sc->mps_bhandle = rman_get_bushandle(sc->mps_regs_resource);
/* Allocate the parent DMA tag */
if (bus_dma_tag_create( bus_get_dma_tag(dev), /* parent */
1, 0, /* algnmnt, boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
BUS_SPACE_MAXSIZE_32BIT,/* maxsize */
BUS_SPACE_UNRESTRICTED, /* nsegments */
BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
0, /* flags */
NULL, NULL, /* lockfunc, lockarg */
&sc->mps_parent_dmat)) {
device_printf(dev, "Cannot allocate parent DMA tag\n");
mps_pci_free(sc);
return (ENOMEM);
}
if ((error = mps_attach(sc)) != 0)
mps_pci_free(sc);
return (error);
}
int
mps_pci_setup_interrupts(struct mps_softc *sc)
{
device_t dev;
int i, error, msgs;
dev = sc->mps_dev;
error = ENXIO;
if ((sc->disable_msix == 0) &&
((msgs = pci_msix_count(dev)) >= MPS_MSI_COUNT))
error = mps_alloc_msix(sc, MPS_MSI_COUNT);
if ((error != 0) && (sc->disable_msi == 0) &&
((msgs = pci_msi_count(dev)) >= MPS_MSI_COUNT))
error = mps_alloc_msi(sc, MPS_MSI_COUNT);
if (error != 0) {
sc->mps_flags |= MPS_FLAGS_INTX;
sc->mps_irq_rid[0] = 0;
sc->mps_irq[0] = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&sc->mps_irq_rid[0], RF_SHAREABLE | RF_ACTIVE);
if (sc->mps_irq[0] == NULL) {
device_printf(dev, "Cannot allocate INTx interrupt\n");
return (ENXIO);
}
error = bus_setup_intr(dev, sc->mps_irq[0],
INTR_TYPE_BIO | INTR_MPSAFE, NULL, mps_intr, sc,
&sc->mps_intrhand[0]);
if (error)
device_printf(dev, "Cannot setup INTx interrupt\n");
} else {
sc->mps_flags |= MPS_FLAGS_MSI;
for (i = 0; i < MPS_MSI_COUNT; i++) {
sc->mps_irq_rid[i] = i + 1;
sc->mps_irq[i] = bus_alloc_resource_any(dev,
SYS_RES_IRQ, &sc->mps_irq_rid[i], RF_ACTIVE);
if (sc->mps_irq[i] == NULL) {
device_printf(dev,
"Cannot allocate MSI interrupt\n");
return (ENXIO);
}
error = bus_setup_intr(dev, sc->mps_irq[i],
INTR_TYPE_BIO | INTR_MPSAFE, NULL, mps_intr_msi,
sc, &sc->mps_intrhand[i]);
if (error) {
device_printf(dev,
"Cannot setup MSI interrupt %d\n", i);
break;
}
}
}
return (error);
}
static int
mps_pci_detach(device_t dev)
{
struct mps_softc *sc;
int error;
sc = device_get_softc(dev);
if ((error = mps_free(sc)) != 0)
return (error);
mps_pci_free(sc);
return (0);
}
static void
mps_pci_free(struct mps_softc *sc)
{
int i;
if (sc->mps_parent_dmat != NULL) {
bus_dma_tag_destroy(sc->mps_parent_dmat);
}
if (sc->mps_flags & MPS_FLAGS_MSI) {
for (i = 0; i < MPS_MSI_COUNT; i++) {
if (sc->mps_irq[i] != NULL) {
bus_teardown_intr(sc->mps_dev, sc->mps_irq[i],
sc->mps_intrhand[i]);
bus_release_resource(sc->mps_dev, SYS_RES_IRQ,
sc->mps_irq_rid[i], sc->mps_irq[i]);
}
}
pci_release_msi(sc->mps_dev);
}
if (sc->mps_flags & MPS_FLAGS_INTX) {
bus_teardown_intr(sc->mps_dev, sc->mps_irq[0],
sc->mps_intrhand[0]);
bus_release_resource(sc->mps_dev, SYS_RES_IRQ,
sc->mps_irq_rid[0], sc->mps_irq[0]);
}
if (sc->mps_regs_resource != NULL) {
bus_release_resource(sc->mps_dev, SYS_RES_MEMORY,
sc->mps_regs_rid, sc->mps_regs_resource);
}
return;
}
static int
mps_pci_suspend(device_t dev)
{
return (EINVAL);
}
static int
mps_pci_resume(device_t dev)
{
return (EINVAL);
}
static int
mps_alloc_msix(struct mps_softc *sc, int msgs)
{
int error;
error = pci_alloc_msix(sc->mps_dev, &msgs);
return (error);
}
static int
mps_alloc_msi(struct mps_softc *sc, int msgs)
{
int error;
error = pci_alloc_msi(sc->mps_dev, &msgs);
return (error);
}
int
mps_pci_restore(struct mps_softc *sc)
{
struct pci_devinfo *dinfo;
mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
dinfo = device_get_ivars(sc->mps_dev);
if (dinfo == NULL) {
mps_dprint(sc, MPS_FAULT, "%s: NULL dinfo\n", __func__);
return (EINVAL);
}
pci_cfg_restore(sc->mps_dev, dinfo);
return (0);
}